#121B42#121B42

#121B42 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.0% C 0.075 H 270.1°. Best body text is #FFFFFF at 16.65:1 contrast (WCAG AA passes).

Color values

HEX	#121B42
RGB	rgb(18, 27, 66)
HSL	hsl(229, 57%, 16%)
HSV	hsv(229, 73%, 26%)
CMYK	cmyk(72.7%, 59.1%, 0%, 74.1%)
CIE-LAB	lab(11.32, 11.05, -26.02)
CIE-LCH	lch(11.32, 28.27, 293.02°)
OKLab	oklab(23.96% 0.0001 -0.0747)
OKLCH	oklch(23.96% 0.075 270.1)
XYZ	xyz(1.6244, 1.3057, 5.3196)
Luminance	0.0131 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121B42 #423912

analogous

#123342 #121B42 #211242

triadic

#121B42 #42121B #1B4212

tetradic

#121B42 #421233 #423912 #124221

square

#121B42 #421233 #423912 #124221

split-complementary

#121B42 #422112 #334212

monochromatic

#070A18 #070A18 #121B42 #1F2F72 #2C42A2

Accessibility & contrast

On white

16.65

#121B42 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#121B42 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121B42

16.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121B42	#FFFFFF	#000000	##FFFFFF
##121B42	1.00	16.65	1.26	16.65
#FFFFFF	16.65	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#042043

Deuteranopia (green-blind)

#001C41

Tritanopia (blue-blind)

#00242B

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #121b42;
/* rgb */ color: rgb(18, 27, 66);
/* oklch */ color: oklch(24.0% 0.075 270.1);

Tailwind

colors: {
  custom: {
    50: '#565677',
    500: '#121b42',
    950: '#000000',
  },
}

SCSS

$custom: #121b42;
$custom-light: #565677;
$custom-dark: #000000;

JSON

{
  "hex": "#121b42",
  "rgb": {
    "r": 18,
    "g": 27,
    "b": 66
  },
  "hsl": {
    "h": 228.75,
    "s": 57.143,
    "l": 16.471
  },
  "oklch": {
    "l": 0.23962,
    "c": 0.07466,
    "h": 270.1
  },
  "luminance": 0.01306
}

Semantic roles & 50–950 ramp

primary

#121B42

secondary

#7B6E35

accent

#C447E0

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030308

muted

#78787B

Preview Lab

Preview with #121B42

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →